The phrase "ambitious amount" is correct and usable in written English.
It can be used to describe a quantity or level that is notably high or challenging to achieve, often in a positive context.
Example: "The project requires an ambitious amount of funding to reach its goals, but we believe it is achievable with the right support."
Alternatives: "substantial amount" or "considerable amount".
The programme is ambitious, amounting to what artistic director John McGrath calls a theatrical "mapping" of Wales.
Work had been pencilled in to start in mid-2020, but members of the cross-party restoration and renewal committee think this is too ambitious, given the amount of preparation work that will be needed.
While Revlon should still have enough money to keep running its business, its efforts to restructure and introduce new products may be a little too ambitious, given the amount of cash it has on its books, said George Chalhoub, a junk bond analyst at Merrill Lynch.
This might suggest that all the parties are over-ambitious in the amount they think they can squeeze out of public services.
In an article published in The Tampa Tribune, editor Philip Booth praised the record as "an ambitious effort that amounts to a culmination and blossoming of the musical forces that have been brewing in the band's sound since Kiedis and Flea birthed the band in 1983".
There have been suggestions that women are systematically less ambitious in the amounts of funding requested in their grant applications when compared with men who are equivalently ranked academically, and that relatively simple mentoring programmes could at least partially overcome this anomaly.
Be careful not to make overly ambitious promises about the amount of time you can devote to volunteering or working for others.
Alas, Mr. Bouley appears to have fallen into the same trap as many other top chefs, what might be called the Vegas Effect: promised undoubtedly good money and ostensibly splendid design, he created an ambitious restaurant in what amounts to a foreign land, and is spending whatever time he feels necessary to train the staff.
In addition, the fund is open to medium projects open to startups and news organizations requiring up to €300k ($333k), and large projects, open to larger organizations with more ambitious goals requiring larger amounts of funding.
